Home / 78,808,055.96-118,212,077.72-39,940,454.13

Finding the Fourth Proportional to 78,808,055.96, 118,212,077.72 and 39,940,454.13

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Solution

The fourth proportional to 78,808,055.96, 118,212,077.72 and 39,940,454.13 is: 59,910,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,808,055.96 : 118,212,077.72 = 39,940,454.13 : x
  2. Step 2: Convert to fraction form
    78,808,055.96/118,212,077.72 = 39,940,454.13/x
  3. Step 3: Cross multiply
    78,808,055.96x = 118,212,077.72 × 39,940,454.13
  4. Step 4: Simplify right side
    78,808,055.96x = 4,721,444,067,219,745
  5. Step 5: Solve for x
    x = 4,721,444,067,219,745/78,808,055.96
  6. Step 6: Final answer
    x = 59,910,678.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.